Actuating device for key-set calculating-machines.



G. J, BARRETT.

ACTUATING DEVICE FOR KEY SET CALCULATING MACHINES. PL-101N011 FILED AUG.15, 1911.

1,108,1 18. Patented Aug. 25, 1914,

-3 SHEETSSHEET 1.

G. J. BARRETT;

AOTUATING DEVICE FOR KEY SET GALGULATING MACHINES. APPLIOATION FILED 11116.15, 1911,

1, 1 O8, 1 1 8. Patented Aug. 25, 1914 3 SHEETS-BEBE! 2.

2/94 hwooea G. J. BARRETT. AOTU ATING DEVICE FOR KEY SET CALCULATING IVDAGHIIIES.

APPLICATION FILED AUG. 15, 1911.

m. w wow H Am a &

UNITED STATES PATENT OFFICE. I

GLENN J. BARRETT, OF GRAND RAPIDS, MICHIGAN, ASSIGNOB, BY MESNE ASSIGN- MENTS, TO BARRETT ADDING MAGHIIE COMPANY, OF WILMINGTON, DELAWARE,

A CORPORATION or DELAWARE.

ACIUAIING DEVICE FOR KEY-SET CALCULATING-MACHINES.

Specification of Letters Patent.

Application filed August 15, 1911. Serial No. 644,0.

5 State of Michigan, have invented certain new and useful Improvements in Act-noting Devices for Key-Set Calculatingdvlachii es;

of which the following is a specification.

v This invention relates to improvements in actuating devices for key-set calculating machines The objects of this invention are to provide certain emergency devices for the elimination of errors in conjunction with the actuating'handle means adapted to a key releasing device appearing in my patent application, Ser. No. 565,561, filed une 7th, 1910 and finally allowed June 7th, 1911.

The object specifically is to provide in conjun ti'on with such actuating means which ordinarily entirely dispense with the key button or independent release, a separate release button device which will throw the machine out of operation at any stage oi its 5 manipulation prior to-the actuation of the deals-whereby a'mistaken number may be eliminated from the count.

Further objects and objects pertaining to structural details will definitely appear froi t 1c detailed description to follow.

..l accomplish the objects of my. invention by the devices and means described in the following specification. invention clearly pointed out in. the claims.

A s ructure coi-istitutinq an ctl'cctive and d 'cmoodiment oi: my invention is 5 in the accompanying f a part of this specification,

defined and a. perspective view of a tabuernhodying the .iieaturcs oi taken at the right hand or asing being omitted. Fig.

1 hand side of the case illus- Fig. 111 is a detail elevathe connection for the emeror keys and the related parts. a detail of the sliding bar 62, the stop member projection there- );g. l is a detail vertical sectional from front to rear through the body of an adding machine embodying the tea of the mechanism itlJPF-EU" tures of my invention. Fig. VI is an enlarged detail perspective view of the key stem releasing slide.

In the-drawing, similar numerals of reference refer to similar parts throughout the several views. 4

I have shown my actuating devices ap plied to a key-set form of. calculating machine. The method of actuating the dials is immaterial to my invention. The mechanism between the two side plates 1 and 2 may be in any form Well known in the keyset adding machine art. It will be understood that this mechanism includes means for latching the keys in depressed position; means for unlatching the same during the operation of the handle; an actuating means for rotating. the dials, the movement of which. is controlled or limited by the respective keys ofthe key board. I

Means are provided for disengaging the dials with the said dial-actuating means during the movement of the latter away from the normal position. Means are provided for maintaining said dial-actuating means in engaged relation to said dials during the return of the former toward the normal position. Also a detent means is rovided for engaging the dials against rotation while th-elatter are disengaged from the dial actuating means. The form of these various mechanisms is not material to my invention. These devices for all of these purposes are well known. The specific mechanism is the same as that appearing in my aforesaid patcnl' application. and is substantially like the mechanism disclosed in my Patent No. i T .-3S't issued to me Nov. 22nd, 1910.

Briefly dcscrihed, the various mechanisms l between the side plates It ale l'ey stems, which. when stops in path ct the slides are also given a rearward movement upon the depression of the key stem coiiperating therewith, which rcamward movement elevates the catch out of engaglng rela- Patented Aug. 25, 1914. a

iici.

the s with a em'b r 81 Uh-e conimctmg sp 10?, 21H.

handle o ieir and t irwzira 1 (.Espressa i orwa-rd mating in:

nveni ihe rock. left s1 1 siidiii the operatioh just ciescr 1' k a L iv s lever i8 is (is dials become iscke ci embers by ing; mac

mp0 iv desc? tail =5 and mp0 contzic wins fimi 30,

ica

pivo said roiioi' 3 is a chine 11211111 and 0 placed in, W0 i the finger 5 the forwzu' When this 51 finger abuts the shaft 1001 thg the veirt slide is forced downw moves the lave lever 48 is from their as feature of mac? ai he undfistood ihn, i in thi zicauating in I As stated, the (iiais are ann'aged from their actun the 1. v0: This "10 T5211 .iormei' patch",

the .nmvemen 0 opera; have? pawl 63. ii

hich mm Tn L y said Patrliai SQO'FJiOH ike iii; 11 my sai'i he. recipresaid iiiais, @3, 8 1%, pmcating mmby virtue of said The movement 0f lever 4-8 as iais with 0 king being locking memihe'pawi 103 into the iocking i f the. dials i'stoc-ai matei'i he hei zafezrwm-d The exact ism nvention but a full iich 1% have i army had -Zi3 33fl View 0% th s ne emhoni ieca 3 is & which is and Waugh the parts he (i s the dials tn be nawl 103 mg constitutes iereme nature w y means of an .veen t ii ha unde he un Shed by the reverse movement; 0

then osition. :11 and actuniing mechan 1% g much The handle p upon the slid arm bfor the bed raulaiin a general 1 carrespondmg sechons bhOVJH 1 Dash 1 lschgaging 0 W1 f 102W 0 ted hackwmrdly to 111g iown 1, e in @1011 shdm members 8 ch locks it lat during resetting 0 th re are rm;

and

hereWi/Li Tuna i and 1y cie icc raced t the (huh; 87. The re gear 8 members mg position W1 11 the (111115- point 'tiun.

po iti0n as s i by Vii 11 8 re den oi the accu erewith 1S aiso The cam ctuate said din isheci by elevating t 109, Whiz (inn mg an engaging and d i Sflili (1 1S immaterial hi my 1 (185011}? 10H 01' the $331 nae to said Patent N0.

shows a pempect inven )n of the )wei" portion of tin slichn an Qt-wea its; a

ha 561' shmvn h and hers a 003K186! g describaid lacks anci llffliOCkS t that the 605? @(i to HHiOCi I n m I f rwhi side 01 a caicul "m'w 82 b pat-em. eating may he their respective actuators, 11 acco hers dial uccompli 10 This locking and-uniocl from their actuator". ti I. 0 10013:

un said dropp form 0 shown in connection it by I'Lfil'vfi 11 ing my mounted held 5 r-xtcnsh nah K in riggici iis hub 9 fit the aux mm sector 12, wh

' the has 68 1a arm 5. Ti

main (1 i (See side and conn'ecte in z-iving ifiiiy secured to the shaf This shaft extends carries upon abhe Left secondary secior 1 k china and clear the machine, be ore scribed in my said under side of said clear of the pin 57 means of said secondary sector 14 causes said roller 56 to force the rear portion of said lever 48 downwardly, which will be understood reengages said dials with their actuating members.

62 is a bar having an inwardly-extending stop member 62, whose function is to prevent the pawl 61 from engaging the pin 57, as previously described, when it is desired to clear the machine. By reason of the connections from the slide 47 to this sliding member 62, which may be traced through the pin 67 the bell crank 66, the link 65, and the lever 64: pivotally mounted at 63, slide is depressed when clearing the dials, this bar 62 is forced grooved pin 53, which it embraces by a slot at the end. (See Figs. 3 and 5). This movement brings the ear of the projection 62 on said bar into the path. of travel of the pawl 61 at the point in the movement of the latter when it would normally be in. position to engage the pin 57. The point upon the pawl 61 where said rojection, 62' contacts with said pawl, is slig tly forward of the pivotal point of said pawl 61 upon the secondary sector 14:, which tilts said pawl upwardly to such .an extent that the engaging portion thereof is free and and so it will be readily seen that while said slide 47 is depressed during the operation of clearing the dials, said pawl cannot cause said dials to become rengaged with, their actuating members, after having been freed therefrom by the upward movement of said slide 4;? previously explained.

In eneral, the operation of the clearin actuatln mechanism previously describe is as follows: When it is desired to return the dials to the 0 oint, in otherwords,

awing the handle forward, and instead of depressing a clearing key as is usually necessary in machines of this class, the handle finger piece 3 is depressed toward the base of the machine. This movement first releases any keys in the key board which may happen to have been previously depressed, and also releases, the dial actuating members so that the same may go-forward, as will be explained hereinafter. These operations are fully deformer patent. Durin the movement of said handle toward normal position, it restores the dial actuators to normal position, while the same are disengaged from said dials, and the projection'62 prevents the pawl 61 from normally coiiper- -ating with said pin 57.

As stated, it will be understood that between the sides 1 and 2 there is mechanism for releasing the keys from depressed positions. It will be further understood that the rocking of the shaft 63, the pivotal point of the lever 64, actuates said key releasing when the rearwardly upon the.

. bers,

mechanism, the details of the latter being immaterial to my invention.

It will also be understood, that in commen with other machines of its class, this line shown in connection with my invention has a means of releasing the dial actuators when clearing'the machine so that said actuators may go forward during the operation of the handle, there bein no key in the key board to 'be depressed. ormally, the depression of any key in any column, releases the 'dial' actuator of that particular column, as will be readily understood by those familiar with the adding machine art as applied to machines of the class shown herewith. This releasing means for the purpose of clearing is also controlled by the rocking of said shaft 63. These parts are all as described in my former patent application referred to, and I have numbered them exactly as they appear in my said former patent application. My present improvement is auxiliary thereto.

. I connect to the rocking shaft 63 an actuating arm 120 to which I connect a key-stem 121 having a key-button 122. From this it will be seen that whenever a number of keys have been depressed and the actuating-handie is started, that it will be possible in an emergency to release all of the keys by depressing the key button 122 and to prevent the sum set in the machine from being accumulated on the dials. This will allow the key stems of the keyboard to rise out of engagement so that the handle'can be manip-' ulated Without accumulating the amount that is thus set in the machine. The slide bar 62 will also be actuated and perform its functions. It is not necessary that the key lever be connected directly to the shaft 63,

as indicated, but a key can be connected to any other part that will actuate the shaft. A key 125 can'be connected to one of the arms of the irregular lever 66. See particularly Fig. III. When this key is depressed, the same result is secured. This is of advantage as it enables the correction of mistakes. It also aifords a convenient left hand button for releasing the keys after they have been set.'

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:' v i 1. In an addin machine of the class described, the combination with'a dial actuating means, a dial resetting means, a. plurality of keys controlling said dial actuating means, operating means, means for holding said keys depressed, releasing members for said keys, a'suitabl journaled rock shaft, a rod secured to cran arms fixed on said rock shaft and engaging the .key releasing memmeans connected to said operating means for rocking said shaft, a crank arm on said shaft and a key stem secured to said 

